Title :
Field Emission Aging Characteristic of Screen Printed CNT Cathode
Author :
Liu, Weihua ; Zhu, Changchun
Author_Institution :
Sch. of Electron. & Inf. Eng., Xi´´an Jiaotong Univ.
Abstract :
Summary form only given. Field emission aging performance is studied. Thermal activation of emitting sites is observed during the aging test. The field emission character curves of screen print CNTs cathode pre and after an aging process is analyzed. It revealed a drop of the field enhance factor (beta) and an increase of effective emission area ratio (alpha). These results coincide well with the illuminating pattern observed in the experiment and indicate a passivation of emitting tips and a growth of the number of emission sites
Keywords :
ageing; carbon nanotubes; field emission; C; carbon nanotube cathode; effective emission area ratio; field emission aging characteristic; field enhance factor; screen printing; thermal activation; Aging; Carbon nanotubes; Cathodes; Passivation; Testing;
Conference_Titel :
Vacuum Nanoelectronics Conference, 2006 and the 2006 50th International Field Emission Symposium., IVNC/IFES 2006. Technical Digest. 19th International
Conference_Location :
Guilin
Print_ISBN :
1-4244-0401-0
DOI :
10.1109/IVNC.2006.335480
